@startuml userlogin
actor Client
participant "UserLogin" as login
participant "FaceVerification" as verification
participant "JWTToken" as jwt
database "TinyDB" as db

Client -> login : user_login(file)
activate login

login -> verification : verify_user_face(file_path)
activate verification
verification --> login : verification_result
deactivate verification

login -> jwt : create_access_token(user_id, metadata)
activate jwt
jwt --> login : access_token
deactivate jwt

login -> db : insert_token(user_id, access_token, expires_at)
activate db
db --> login
deactivate db

login --> Client : {access_token, user_id, name, role}
deactivate login
@enduml